February 21, 2017: MOECC has posted the amended regulation to exempt certain systems from ECA requirements. The new regulation is O.Reg. 14/17. It amends the old O.Reg. 524/98. Heating and standby generators have now been added to the exemptions. These systems no longer need to be registered (O.Reg. 346/12 was revoked). Keep in mind, that this only exempts these systems from requiring a S9 approval. The emissions still need to be considered in your site wide emissions!